Acer Iconia B1-721 vs NIU Niutek 3G 4.0 N309
Acer Iconia B1-721
NIU Niutek 3G 4.0 N309
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPAHSDPA 850, 1900
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HSDPA speedHSDPAHSDPA, 14.4 Mbps
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HSUPA speedHSUPA-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-12012-6
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Status2014-12012-8
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Design
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SIMYesDual SIM (Mini-SIM)
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Height199 mm123.5 mm
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Width122.3 mm65 mm
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Thickness11.4 mm10.5 mm
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Weight323 g71 g
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ColorsBlack/RedBlack, White
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size7.0 inches4.0 inches
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Resolution600 x 1024 pixels480 x 800 pixels
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Pixel density170 ppi233 ppi
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Display colors-16777216
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Hardware
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CPUDual-core 1.3 GHz1 GHz ARM Cortex-A9
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ChipsetMediatek MT8312Mediatek MT6575
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GPUMali-400PowerVR SGX531
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Memory ROM-512 MB
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Memory RAM1 GB512 MB
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Internal storage16 GB-
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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OS
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OSAndroid OS, v4.2 (Jelly Bean)Android OS, v2.3 (Gingerbread)
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Main camera
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Main camera5 MP
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Primary camera resolution640 x 480 pixels2592 x 1944 pixels
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Primary camera videovideovideo
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraNoVGA camera
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsN/AVibration, MP3 ringtones
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Multimedia
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RadioNo-
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Radio FM-Stereo FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g
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WLAN WiFi Hotspot-Yes
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USBmicroUSB 2.0Yes
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BluetoothYesv2.1
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GPSYesYes
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Features
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Messaging SMS-SMS(threaded view)
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Messaging MMS-MMS
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Messaging EmailEmailEmail
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Messaging IMIMIM
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Messaging Push EmailPush Email-
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WAP-WAP 2.0/xHTML
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLHTML5Yes
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity2955 mAh1650 mAh
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Talk time--
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Talk time 2G-16 h
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Talk time 3G-7 h
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Standby time--
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Standby time 2G-713 h
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Standby time 3G-428 h
